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Firefox laggards offered security update

3.0.12 release fixes multiple critical bugs

Mozilla has released a security and stability update for users still running 3.0.x versions of Firefox.

Firefox 3.0.12 addresses security and performance bugs in the open source browser for users yet to upgrade to 3.5.x, which was released with great fanfare in late June.

The 3.0.12 update addresses five critical flaws, arising from memory corruption flaws and separate problems involving font glyph rendering libraries and handling Flash, as explained here. There's also a fix for a less serious security vulnerability involving wrappers.

Stability problems where Firefox 3.0.11 would occasionally freeze when accessing the Java plug-in on Windows XP are also addressed with the Windows versions of Firefox 3.0.12. Meanwhile the Apple-flavoured Mac OS X version of the release tackles an AppleScript bug, as explained in Mozilla's release notes here.

Mozilla intends to continue releasing security and stability updates for older versions of its browser until January 2010, while encouraging users to upgrade sooner rather than later. ®

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